Explosive-mixture compressor



.L l. GEMMILL Ex1=I .osIvE MIXTURE COMPRESSOR Feb.. 23

Filed Jan. 25', .1924

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Patented Feb. 23, 1926.'

UNITED STATES TENT .GFFICB JAMES I. GElVIlVIILL, OF PONTIAC, MICHIGAN, ASSIGNOR OF ONE-HALF TO WM. A. LUDLOW, OF PONTIAC, MICHIGAN.

EXPLOSIVE-MIXTURE COMPRESSOR..

Application led January 23, 1924. Serial No. 688,114.

To @ZZ whom it may concern:

Be it known that I, JAMES I. GEMMILL, a citizen of the United States of America, residing at Pontiac, in the county of Oakland and State of Michigan, have invented certain new and useful Improvements in Explosive-Mixture Compressors, of which the following is a specification.

This invention relates to new and useful improvements in explosive mixture compressors for internal combustion engines.

An important object of the invention is to provide a compressor adapted to be interposed between a combustion engine and carbureter for delivering fuel to the intake valves under a greater pressure than the atmospheric pressure produced by the suction of the piston within the engine.

A further object of the invention is to provide a device of the above mentioned type which is of simple construction, eflicient in operation, cheaply manufactured, and one that may be quickly and easily applied to the present, standard makes of internal combustion engines.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same.

Figure 1 is a side elevational view, partly in section, of the explosive mixture compressor embodying this invention, and

Figure 2 is an end elevational view of a compressor fan employed in connection with this invention.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of this invention, the numeral 5 designates a single intake and double discharge manifold pipe having a flanged intake 6 and a pair of spaced, flanged discharge ends 7 and 8, as illustrated. The flange 6a, forming part of the intake 6, is to be suitably connected to the carbureter associated with an internal combustion engine. The flanges 7a and 8a of the discharge ends 7 and 8 of the manifold pipe 5 are intended to be suitably connected to the elbows 9 and 10 by means of the flanges 9a and 10a carried by the intake ends 11 and 12 of the said elbows 9 and 10. The discharge ends 18 and 14C of the elbows 9 and 10 are provided with flanges 13a and 14a to which are secured the flanges 15a and 16at of the nipples 15 and 16. These nipples 15 and 16 are further provided with flanges 15b and 16b at their adjacent ends to which are secured the flanges 17a of the coupler 17. It will be seen that thisV coupler 17 is provided with a anged discharge opening 18 to which the intake manifold, leading to the combustion chambers of the engine, is to be attached.' It will be seen, by inspecting Fig. 1, that this coupler 17 is provided with an integral, inwardly projecting fin 19 which is in axial alinement with the discharge opening 18 of the said coupler.

wardly directed, axially alined annular bosses 2O and 21 which are adapted for receiving the roller bearings 22 which areY provided for auti-fricti-onally supporting the shaft 23, as illustrated. Secured to the shaft 23, in juxtaposition to the roller bearings 22, are the movement limiting collars 24 which are suitably secured to the shaft 23 and are employed for preventing longitudinal shifting of the said shaft. rlhe elbow 9 is further provided with an integral nipple 25 which is provided for carrying the stuffing box 26 which is employed for preventing the escape of fuel around the projecting end 23)a of the shaft 23.

Mounted upon the shaft 23 and positioned within the nipples 15 and 16 are oppositely inclined fans 27 which each consist of a hub portion 28, suitably keyed to the shaft 23, and having an integral, annular iiange or disk 29, as illustrated. Suitably secured to or formed integrally with the hub and annular flange 28 and 29 of each fan 27 are the fan blades 30 which, as illustrated in Fig. 2, are of curved profile. It will be seen that these fan blades are beveled, as at 31, at their outer edges.

Suitably clamped between the flanges 14a and 16a of the elbow 10 and nipple 16 and between the flanges 13a and 15a of the elbow 9 and nipple 15 are the apertured disks 32 which are formed for permitting the passage of fuel into the pockets formed by the fan blades 30 at the reduced ends of said fans 27. Suitably secured to or formed integrally with the apertured disks 32 are the thimbles 33 which surround the beveled edges 31 of the fan blades 3() and are-positioned in proximity to said edges.

It will readily be understood that if the The elbows 9 and 10 are provided with inflange 6u of the intake v6, of the manifold pipe 5 is connected to a carbureter `and power applied to the projecting end 23@ of the shaft 23 for rotating the said shaft in the proper direction, fuel will be .sucked from the carbureter and drawn through the elbows 9 and l0, from the discharge ends 7 and 8 of the manifold pipe 5 by the fans 27. rIhe fuel will be admitted to the fans through the apertures 32BM of the disks 32 and will be discharged by the fans through the annular openings 29l surrounding the annular flanges 29 carried by the fan hubs It will be seen that the fuel discharged by the fans 27 will enter the interior of the coupler 17 4*and that the inwardly projecting iin 19 will have a tendency to direct or steer the fuel toward the discharge opening 18 of the coupler.

It is now believed `that the construction and operation of this device will be understood, by those skilled in the art, without any further description of the same.

It is to be understood that the form of this invention herewith shown and described is to be taken as the preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to withoutdeparting from the spirit ofthe invention or the scope of the subjoined claims.

Having thus described the invention, I claim l. In a device of the class described, a single intake and double discharge manifold pipe, an elbow connected to each discharge of said pipe, a nipple connected to each of said elbows, a three-way coupler connecting said nipples, a shaft extending axially through said nipples, a fan in each of ysaid nipples keyed to said shaft and having fan bladesprovided with beveled outer edges, said fans each having a central annular in- 1et and a peripheral annular outlet, and a thimble positioned within each of said nipples surrounding said fan and formed to correspond with the beveled edges of said blades.

2. In a device of the class described, a cylindrical fuel passageway, a shaft extending axiallythrough said passageway, a hub keyed to said shaft, an annular flange carried by one end of said hub, a plurality of radially curved fan blades carried by said hub and lange and having beveled outer edges, and

a cone-like thimble non-rotatable carried by said annular passageway surrounding said fan 'blades and conforming with the beveled Vedges thereof.

3. In a device of the class described, a fan comprising a hub, an annular outwardly directed flange carried by one end of said hub, a series of tangential fan blades carried by said hub and flange, said fan blades having their outer edges beveled longitudinally.

Ll. In a device of the type described, a fuel conduit having a lateral inlet at each Gnd and an oppositely extending lateral outlet intermediate said ends, a fin projecting into the bore of the conduit Iin axial alinemcnt with said lateral outlet, a shaft jonrnaled axially in said conduit, a pair of hubs each of which has ,a concentric annular flange formed on the inner end thereof which is of less diameter than the 4diameter of the bore of the conduit, said hubs .and their flanges being keyed to said shaft intermediate the inlets and the outlet, a series of tangentially extending blades carried by each of said hubs and iange structures, the

outer edges of said blades being beveled, and immovable cone-like thimbles surrounding the blades carried 'by each hub .and conforming with their beveled edges, and annular disks connecting the smaller ends of said thimbles to said conduit.

In testimony whereof I afiiX my signature.

JAMES I. GEWMILL. 

